SIE18-3903 - Piston Rings

List Price

Your Price

Part Number

Sierra Marine

18-3903 Piston Ring Mercury 39-27841A12

PLEASE NOTE: The Sierra Part 18-3903 is THREE RINGS for ONE PISTON ONLY while the Mercury set is twelve rings. If you order the Sierra 18-3903 you will only get THREE RINGS as shown.
Warranty (PDF)
Enlarge photo

Sierra Marine Sie18-3903 - Piston Rings is equivalent to parts:

Sierra Marine is the market leader for aftermarket marine engine parts. Sierra products cover every major engine brand. Sierra offers a comprehensive product line and an unsurpassed customer satisfaction warranty covering parts and labor.